A felt roll assisted braking system

Abstract

This utility model belongs to the technical field of waterproof membrane production equipment, and discloses a felt roll auxiliary braking system, mainly used to solve the problems of poor braking response, braking efficiency and braking stability of existing technologies that use manual braking. This utility model adopts an independent physical auxiliary braking system, which is mainly used to brake the transmission shaft between the felt storage rack and the rolling machine. It uses the frictional resistance when the brake pads contact the transmission shaft to achieve braking. The system can completely lock the membrane and the transmission shaft at the moment of cutting, completely eliminating the problem of membrane slippage, improving the length consistency of the finished membrane and increasing the product qualification rate. At the same time, this utility model uses automated control to replace manual intervention, which can shorten the single cutting cycle, improve the overall efficiency of the equipment, and significantly improve the production efficiency of the membrane.

Description

Technical Field

[0001] This utility model belongs to the technical field of waterproof membrane production equipment, specifically, it relates to a roll-up auxiliary braking system. Background Technology

[0002] In the production of waterproof membrane rolls, roll winding is one of the core processes. Its purpose is to wind continuously produced waterproof material into standard-length rolls using a rolling machine, followed by cutting and packaging. In traditional production processes, after the roll is wound on the drive shaft between the storage rack and the rolling machine, it needs to be cut to a fixed length using a cutting device. However, because the surface of waterproof membrane rolls is usually covered with a smooth release film or coating (such as PE film or asphalt coating), coupled with the inertia of the transmission system, relative slippage easily occurs between the roll and the drive shaft at the moment of cutting, causing the cut roll to move 3-8 cm axially. This slippage not only causes the finished length to exceed the tolerance range (for example, the actual length of a 20-meter roll designed for a range of ±5%), but also results in uneven cross-sections, seriously affecting the product's appearance quality and downstream construction efficiency (such as requiring frequent alignment corrections during installation).

[0003] In existing technologies, some companies employ manual intervention to address the slippage problem. For example, operators manually fix the roll material's position before cutting, or they install simple mechanical limit blocks on the drive shaft. However, manual adjustment has the following drawbacks:

[0004] Response lag: After the cutting signal is issued, the operator needs to complete the intervention in a very short time. Due to the limitation of reaction speed, it is difficult to achieve precise synchronization.

[0005] Poor consistency: Different operators apply different braking forces, and manual operation is susceptible to fatigue, resulting in significant fluctuations in the length of batch products.

[0006] Inefficiency: Frequent production line interruptions for manual adjustments reduce overall equipment efficiency and increase production costs.

[0007] In summary, with the increasing standardization requirements of the construction industry for waterproofing materials (such as the strict regulations on roll length in standards like GB18242-2008), and the higher demand for equipment automation under the trend of intelligent manufacturing, there is an urgent need for an efficient, stable, and integrable roll-fed auxiliary braking system to fundamentally solve the above-mentioned technical pain points. Utility Model Content

[0008] The purpose of this invention is to provide a felt-rolled auxiliary braking system, which aims to solve the problems of poor braking response, braking efficiency and braking stability of the existing technology that uses manual braking.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A felt roll auxiliary braking system is applied in a waterproof roll material production system, comprising at least two sets of braking devices. The braking devices are installed in conjunction with multiple drive shafts between the felt storage rack and the roll-up machine. Each braking device includes a drive cylinder and a brake pad. The brake pad is fixedly connected to the actuating end of the drive cylinder. The drive cylinder drives the brake pad to clamp or release the drive shaft. At least one set of braking devices simultaneously applies a clamping force to the drive shaft and the roll material on the drive shaft.

[0011] As a further preferred embodiment of this technical solution, the brake pad is arc-shaped, and the concave surface of the arc-shaped brake pad is adapted to the outer axial surface of the transmission shaft.

[0012] As a further preferred embodiment of this technical solution, a single drive shaft is equipped with a plurality of brake pads, and the plurality of brake pads are evenly arranged along the length direction of the drive shaft.

[0013] As a further preferred embodiment of this technical solution, it also includes a frame, with both ends of the drive shaft rotatably connected to the frame; the cylinder body of the drive cylinder is fixedly connected to the frame via a connector.

[0014] As a further preferred embodiment of this technical solution, the braking device further includes a pressure sensor, which is embedded in the friction contact surface of the brake pad and is signal-connected to the drive cylinder.

[0015] As a further preferred embodiment of this technical solution, the friction contact surface of the brake pad is provided with a friction enhancement layer.

[0016] As a further preferred embodiment of this technical solution, anti-slip texture is provided on the outer shaft surface of the transmission shaft.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention employs an independent physical auxiliary braking system, primarily used to brake the drive shaft between the felt storage rack and the winding machine. Braking is achieved by utilizing the frictional resistance between the brake pads and the drive shaft. The system can completely lock the roll material and drive shaft at the moment of cutting, completely eliminating roll material slippage, improving the length consistency of the finished roll material, and increasing the product qualification rate. Simultaneously, this invention uses automated control to replace manual intervention, shortening the single cutting cycle, improving overall equipment efficiency, and significantly increasing the production efficiency of the roll material. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of one embodiment of the present utility model;

[0021] Figure 2 This utility model is for Figure 1 A schematic diagram of the front structure;

[0022] Figure 3 This is a schematic diagram of the braking device in one embodiment of the present invention.

[0023] Among them, 1-drive shaft, 2-drive cylinder, 3-brake pad, 4-frame, 5-connector, 6-pressure sensor. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figures 1 to 2 The diagram illustrates a felt-rolling auxiliary braking system applied in a waterproof membrane production system. The braking system is installed in conjunction with multiple drive shafts 1 between the felt storage rack and the winding machine. It should be noted that both the felt storage rack and the winding machine are common equipment in waterproof membrane production systems. The felt storage rack stores and conveys the felt material, while the winding machine winds up the membrane. To better control the tension of the waterproof membrane during conveying and to provide guidance and positioning, multiple drive shafts 1 are installed between the two devices. During the winding process, the waterproof membrane sequentially passes around the multiple drive shafts 1 and winds onto the winding machine. The winding machine's own shaft rotates to wind the waterproof membrane. Once the rolled membrane reaches a certain thickness or length, the rotation of the winding machine's shaft is paused, and the membrane is then cut by an automated cutting device above it. After cutting, the next winding cycle begins.

[0027] The existing felt rolling system is not equipped with a braking device for the drive shaft 1. Therefore, when rolling and cutting, the rotation of the roll can only be paused by turning off the rolling machine. However, due to the relatively smooth surface of the roll and the rotational inertia of the drive shaft 1, the roll will still slide forward a certain distance after the roll stops rotating, causing the cutting position of the roll to be too far back, which results in poor consistency of the length of the final rolled roll.

[0028] Based on the above considerations, this embodiment installs a braking device that works in conjunction with the drive shaft 1 to assist in stopping the roll system. The braking device and the active braking of the winding machine work together to achieve instantaneous locking of the roll and the drive shaft 1, thus completely eliminating the problem of roll slippage.

[0029] Specifically, the braking device includes a drive cylinder 2 and a brake pad 3. The brake pad 3 is fixedly connected to the actuating end of the drive cylinder 2. The drive cylinder 2 drives the brake pad 3 to clamp or release the transmission shaft 1. The two ends of the transmission shaft 1 are rotatably connected to the frame 4. The cylinder body of the drive cylinder 2 is fixedly connected to the frame 4 through a connector 5. It should be noted that the drive cylinder 2 can be any one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. The brake pad 3 is made of ceramic-based composite friction material. In this embodiment, the brake pad 3 is arc-shaped, and the concave surface of the brake pad 3 is adapted to the outer axial surface of the transmission shaft 1. The mutually fitting contact surfaces are more conducive to frictional force and can improve braking stability. Furthermore, there are several brake pads 3 equipped on a single transmission shaft 1 (three in the figure). The several brake pads 3 are evenly arranged along the length direction of the transmission shaft 1, and the several brake pads are uniformly fixed to the actuating end of the drive cylinder 2 by the connecting piece 5. The reason for setting multiple brake pads 3 is that they can act on the transmission shaft 1 and the roll material at multiple points, increase the frictional resistance between the two, and ensure braking stability.

[0030] In addition, at least one set of braking devices applies a clamping force to the drive shaft 1 and the roll material on the drive shaft 1 at the same time, while other braking devices act directly on the drive shaft 1. The purpose of this arrangement is to enable the roll material and the drive shaft 1 to stop at the same time, so as to avoid the situation where the drive shaft 1 suddenly stops rotating but the roll material on it continues to slide forward due to inertia.

[0031] It should also be noted that the braking device in this embodiment needs to be equipped with a controller between the winding machine and the cutting device. The controller is used to coordinate the operation of the three devices to achieve precise switching of their working postures. For example, when the winding machine stops working, the braking device and the cutting device need to be in place at the same time to brake and cut, so as to achieve work linkage and avoid premature locking (obstructing normal winding) or late locking (slippage has occurred).

[0032] Example 2

[0033] This embodiment is a further preferred solution of Embodiment 1 above. In this embodiment, as follows: Figure 3 As shown, the braking device also includes a pressure sensor 6, which is embedded in the friction contact surface of the brake pad 3 and is signal-connected to the drive cylinder 2.

[0034] The pressure sensor 6 is used to detect the pressure between the brake pad 3 and the drive shaft 1, so as to adjust the actuation output load of the drive cylinder 2 in real time, so as to prevent the output pressure from being too high and damaging the drive shaft 1 and the roll material, and the output pressure from being too low and causing braking failure.

[0035] Example 3

[0036] This embodiment is a further preferred embodiment of the above embodiment 1. In this embodiment, a friction enhancement layer is provided on the friction contact surface of the brake pad 3. The friction enhancement layer is made of materials such as glass fiber and aramid fiber that can enhance the braking performance of the brake pad.

[0037] Example 4

[0038] This embodiment is a further preferred embodiment of the above embodiment 1. In this embodiment, the outer shaft surface of the drive shaft 1 is provided with anti-slip texture. The anti-slip texture can prevent the roll material from sliding relative to each other when it is conveyed on the drive shaft 1, thus ensuring the conveying stability.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A roll felt auxiliary braking system applied to a waterproofing membrane production system, characterized in that, It includes at least two sets of braking devices, which are installed in conjunction with multiple drive shafts (1) between the felt storage rack and the winding machine; the braking device includes a drive cylinder (2) and a brake pad (3), the brake pad (3) is fixedly connected to the actuating end of the drive cylinder (2), and the drive cylinder (2) drives the brake pad (3) to clamp or release the drive shaft (1); at least one set of braking devices applies clamping force to the drive shaft (1) and the roll material on the drive shaft (1) at the same time.

2. The felt assisted brake system of claim 1, wherein, The brake pad (3) is arc-shaped, and the concave surface of the arc-shaped brake pad (3) is adapted to the outer axial surface of the transmission shaft (1).

3. The felt-rolled auxiliary braking system according to claim 1, characterized in that, The single drive shaft (1) is equipped with a number of brake pads (3), and the number of brake pads (3) are evenly arranged along the length direction of the drive shaft (1).

4. The felt assisted brake system of claim 1 wherein, It also includes a frame (4), with both ends of the drive shaft (1) rotatably connected to the frame (4); the cylinder body of the drive cylinder (2) is fixedly connected to the frame (4) through a connector (5).

5. The felt assisted brake system of claim 1 wherein, The braking device also includes a pressure sensor (6), which is embedded in the friction contact surface of the brake pad (3) and is signal-connected to the drive cylinder (2).

6. The felt assisted brake system of claim 1 wherein, The friction contact surface of the brake pad (3) is provided with a friction enhancement layer.

7. The felt assisted brake system of claim 1 wherein, Anti-slip texture is provided on the outer shaft surface of the transmission shaft (1).

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